Process Development to Recover Rare Earth Metals from Selected Primary Ores: A Review. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 23, n. 1, p. 1–20, 2024. DOI: 10.21743/pjaec/2022.06.01. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/14. Acesso em: 12 jul. 2025.